Anticreeping device for electric meters.



N0. 7l2,063. Patented Oct. 28, I902.

C. D. HASK INS. ANTIGREEPING DEVICE FOR ELECTRIC METERS.

(Application filed Mar. .30, 1901.)

(No Model.)

Invenfon ar yl llHaskmsy UNITED STATES PATENT OFFICE.

. CARYL D. HASKIN S, OF SCHENECTADY, NEW YORK, ASSIGNOR TO GENERALELECTRIC COMPANY, A CORPORATION OF NEW YORK.

ANTICREEPING DEVICE FOR ELECTRIC METERS.

SPECIFICATION forming part of LettersPatent N 0. 712,063, dated October28, 1902. Application filed March 30, 1901. Serial No. 58,605. (Nomodel.)

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Be it known thatI,GARYLD.HAsKINs,-a citizen of the United States,residing at- Schenec tady, county of Schenectady, State of New York,have invented certain new and useful Improvements in AnticreepingDevices for Electric Meters, (Case No. 1,957,) of which the following isa specification.

My present invention relates to means for preventing the creeping ofelectric meters or similar devices, due to vibration or other causes.

In the specific embodiment hereinafter described as illustrating oneform of myinvention a cam is mounted upon the meter-shaft, this camcooperating with a spring-mounted roller carried by some stationary partof the meter. When, due to rotation of the meter, the roller rides upone side of the cam, it produces a retarding effect upon the rotatingmember of the meter, while as it rolls down the succeeding portion ofthe cam-surface it causes an accelerating effect practically equal butopposite in character to the previous retarding efiect. The number ofrevolutions of the meter is therefore not perceptibly affected by thepresence of the cam and its cooperating roller, which togetherconstitute an anticreeping device. The parts are adjusted, however, sothat the retarding effect is snfficient to overcome any tendency tocreeping of the meter which may exist.

For a better understanding of my invention reference is to be had to thefollowing description, taken in connection with the accompanyingdrawings. As to its scope attention is directed more particularly to theclaims appended hereto.

In the drawings, Figurel represents a meter to which is applied ananticreeping device made in accordance with my invention; while Fig. 2is a view, partly in section, such as would be presented by lookingupward at the anticreeping device shown in Fig. 1.

In Fig. l the anticreeping'device is shown as applied to a meter of atype now in common use, and therefore requiring no special description.The frame of the meter is indicated at 1, the armature and field-magneto coils at 2 and 3, respectively, and the damping-disk anddamping-magnets at 4 and 5, re-

spectively. The arm ature-shaft 6 has mounted thereon a cam 7, an endView of which is shown in Fig. 2. A small antifriction-roller 8, mountedin a spring-arm 9, codperates with this cam. The arm 9 is shown ascarried by an extension of the bolt 10, which is used for securing, inplace one of the field-coils 3. This spring-arm 9 is fastened to aperforated disk 11, which is clamped against the securing-nut 6o 12 bymeans of an additionalclamping-nutl3.

By adjusting the arm 9 angularly about its support, so as to bring theantifriction-roller 6 inward or outward from the shaft carrying the cam7, the amount of-restraining force exerted by the spring-arm 9 and itsroller 8 as the cam comes into engagement with the tial energy. When theroller passes over the portion of the cam having the greatest radius,the tension of the spring acts to accelerate the armature-shaft, therebyrestoring the energy previously stored.

Since various modifications may be made in the embodiment of myinvention as herein set forth without departing from the spirit thereof,I do not wish to be limited to the precise details shown.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. The combination with a meter, of a device adapted to be held inyielding engagement with the rotating member of said mego ter and tointermittently restrain the rotation of the same.

2. In an electric meter, the combination with the rotating memberthereof, of mechanical means for preventing creeping of said 5 memberarranged to alternately retard and accelerate the rotating member whenthe meter is in operation.

3. In an electric meter, the combination of relatively movable members,and an antilco creeping device consisting of cooperating parts arrangedto prevent creeping and to alternately retard and accelerate the meter acooperating spring-mounted roller supwhen the latter is in normaloperation. ported by a stationary part of the meter. IO

4:. In an electric meter, the combination of In witness whereof I havehereunto set my a cam carried by the shaft of the meter, and hand this29th day of March, 1901.

a cooperating roller supported by a station- OARYL D. HASKINS. my partof the meter. WVitnesses:

5. In an electric meter, the combination of BENJAMIN B. HULL, a camcarried by the shaft of the meter, and EDWARD WILLIAMS, Jr.

